RU99107420A - METHOD FOR PRODUCING COMPLEX FERTILIZERS - Google Patents

METHOD FOR PRODUCING COMPLEX FERTILIZERS

Info

Publication number
RU99107420A
RU99107420A RU99107420/12A RU99107420A RU99107420A RU 99107420 A RU99107420 A RU 99107420A RU 99107420/12 A RU99107420/12 A RU 99107420/12A RU 99107420 A RU99107420 A RU 99107420A RU 99107420 A RU99107420 A RU 99107420A
Authority
RU
Russia
Prior art keywords
nitric acid
producing complex
complex fertilizers
separation
stage
Prior art date
Application number
RU99107420/12A
Other languages
Russian (ru)
Other versions
RU2162071C2 (en
Inventor
Б.А. Дмитриевский
А.В. Дремов
Л.А. Стародубцев
Н.Н. Треущенко
В.И. Юрьева
Original Assignee
Общество с ограниченной ответственностью "Эковита"
Filing date
Publication date
Application filed by Общество с ограниченной ответственностью "Эковита" filed Critical Общество с ограниченной ответственностью "Эковита"
Priority to RU99107420/12A priority Critical patent/RU2162071C2/en
Priority claimed from RU99107420/12A external-priority patent/RU2162071C2/en
Publication of RU99107420A publication Critical patent/RU99107420A/en
Application granted granted Critical
Publication of RU2162071C2 publication Critical patent/RU2162071C2/en

Links

Claims (1)

Способ получения сложных удобрений, включающий разложение фосфоритового сырья азотной кислотой, отделение нерастворимого остатка, выделение нитрата кальция кристаллизацией, нейтрализацию азотнофосфатной вытяжки аммиаком, выпарку, смешение с плавом аммиачной селитры и калийной солью, грануляцию и сушку готового продукта, отличающийся тем, что азотнокислотную обработку сырья проводят в две стадии: на первую стадию подают 60-90% азотной кислоты от стехиометрической нормы на CaO, на вторую стадию - 30-60%.A method of producing complex fertilizers, including the decomposition of phosphorite feedstock with nitric acid, separation of the insoluble residue, the separation of calcium nitrate by crystallization, the neutralization of nitrogen phosphate extract with ammonia, evaporation, mixing with the ammonium nitrate and potassium salt melt, granulation and drying of the finished product, characterized in that the nitric acid carried out in two stages: the first stage serves 60-90% of nitric acid from the stoichiometric norm for CaO, the second stage - 30-60%.
RU99107420/12A 1999-03-31 1999-03-31 Method of preparing complex fertilizers RU2162071C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU99107420/12A RU2162071C2 (en) 1999-03-31 1999-03-31 Method of preparing complex fertilizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU99107420/12A RU2162071C2 (en) 1999-03-31 1999-03-31 Method of preparing complex fertilizers

Publications (2)

Publication Number Publication Date
RU99107420A true RU99107420A (en) 2000-12-27
RU2162071C2 RU2162071C2 (en) 2001-01-20

Family

ID=20218381

Family Applications (1)

Application Number Title Priority Date Filing Date
RU99107420/12A RU2162071C2 (en) 1999-03-31 1999-03-31 Method of preparing complex fertilizers

Country Status (1)

Country Link
RU (1) RU2162071C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101343206B (en) * 2008-09-05 2011-05-04 中国-阿拉伯化肥有限公司 Process for preparing circular particle kalium based fertilizer

Similar Documents

Publication Publication Date Title
CA2367581A1 (en) Processes for preparing granular composite fertilizer compositions and products produced thereby
MY119735A (en) Method for coating particulated fertilizers
US1876501A (en) Concentrated fertilizers
DK0560882T3 (en) Process for the preparation of phosphorus nitrogen-containing products and the products thus obtained
RU99107420A (en) METHOD FOR PRODUCING COMPLEX FERTILIZERS
RU2106329C1 (en) Method of producing phosphorus-containing complex fertilizers
RU96111396A (en) METHOD FOR PRODUCING PHOSPHORUS CONTAINING COMPLEX MIXED FERTILIZERS
TR200201423T2 (en) Production of two alkali metal salts by a combined ion exchange and crystallization process.
US4073635A (en) Process for producing a slurry suitable for the manufacture of a mixed fertilizer containing nitrogen plus phosphorus
RU2003118060A (en) METHOD FOR PRODUCING GRANULATED MINERAL FERTILIZER CONTAINING NITROGEN AND PHOSPHORUS AND GRANULATED MINERAL FERTILIZER
ES350603A1 (en) Process by spraying melts or suspensions with low water comprising fertilizers containing the plant nutrients nitrogen and phosphorus
GB1247365A (en) Continuous nitrophosphate fertilizer process
UA9608A (en) Process for preparation of nonchlorous nonsulfur nitrogen-phosphorous-potassium fertilizer
EP0136073A3 (en) Hexahydro-3,5-dioxo-1h-pyrrolizine-2-carboxylic acid and derivatives as cognition activators
ES2206044B1 (en) PROCEDURE FOR OBTAINING NITROGEN GRANULATED FERTILIZER WITH HIGH CONTENT IN MICROELEMENTS AND FERTILIZERS SO OBTAINED.
SU1576521A1 (en) Method of obtaining organo-mineral fertilizer
RU2002110634A (en) METHOD FOR PRODUCING COMPLEX FERTILIZER
RU2314277C1 (en) Process of manufacturing nitrogen-phosphorus-sulfate fertilizers
SU647298A1 (en) Method of obtaining granulated complex fertilizer
RU2002133742A (en) METHOD FOR PRODUCING COMPLEX FERTILIZERS
RU2277078C1 (en) Method of production of complex fertilizer
RU2003103273A (en) METHOD FOR PRODUCING COMPLEX NITROGEN-PHOSPHORUS FERTILIZER
SU833925A1 (en) Method of producing nitroammonium phosphate
UA39733A (en) method for producing nitrogen-phosphorus-potassium fertilizer
SU1527225A1 (en) Method of producing molybdenum-containing fertilizer